Showing titles in Physics

Carl Sagan, writer and scientist, returns from the frontier to tell us about how the world works. In his delightfully down-to-earth style, he explores and explains a mind-boggling future of intelligent robots, extraterrestrial life and its consequences, and other provocative, fascinating quandaries of the future that we want to see today.

Did NASA really spend millions creating a pen that would write in space? Is chocolate poisonous to dogs? Does stress cause gray hair? These questions are a sample of the urban lore investigated in this audiobook, Fact or Fiction: Science Tackles 58 Popular Myths. Drawing from Scientific American’s “Fact or Fiction” and “Strange But True” columns, we’ve selected 58 of the most surprising, fascinating, useful, and just plain wacky topics confronted by our writers over the years.

Astronomers have successfully observed a great deal of the universe’s history, from recording the afterglow of the big bang to imaging thousands of galaxies, and even to visualising an actual black hole. There’s a lot for astronomers to be smug about. But when it comes to understanding how the universe began and grew up, we are literally in the dark ages. In effect, we are missing the first one billion years from the timeline of the universe.

Light in the Darkness examines how mankind has always looked to the skies, mapping the journey from millennia ago when we turned our gaze to the heavens, to modern astrophysics. Heino Falcke and Jorg Romer entertainingly and compellingly chart the breakthrough research of Falcke's team, an unprecedented global community of international colleagues developing a telescope complex enough to look directly into a black hole - a hole where light vanishes, and time stops.

Michael McCarthy, one of Britain's leading writers on the environment, proposes this joy as a defence of a natural world which is ever more threatened and which, he argues, is inadequately served by the two defences put forward hitherto: sustainable development and the recognition of ecosystem services. Drawing on a wealth of memorable experiences from a lifetime of watching and thinking about wildlife and natural landscapes, McCarthy presents a new way of looking at the world.

The discovery of the quantum - the idea, born in the early 1900s in a remote corner of physics, that energy comes in finite packets instead of infinitely divisible quantities - planted a rich set of metaphors in the popular imagination. Quantum imagery and language now bombard us like an endless stream of photons. Phrases such as multiverse, quantum leap, alternate universe, the uncertainty principle, and Schrödinger's cat get reinvented continually in cartoons and movies, coffee mugs and T-shirts, and fiction and philosophy.

In this stunning new volume, Jim Baggott argues that there is no observational or experimental evidence for many of the ideas of modern theoretical physics: Super-symmetric particles, super strings, the multiverse, the holographic principle, or the anthropic cosmological principle. These theories are not only untrue; they are not even science. They are fairy-tale physics: Fantastical, bizarre and often outrageous, perhaps even confidence-trickery. This book provides a much-needed antidote.

‘It didn’t matter that they were now three miles beyond their target site, that communications were dropping out and that they were running low on fuel. All that mattered to Neil as he searched for a safe spot to land was that boulders littered the surface below. “Thirty seconds,” called mission control. In truth, the flight controllers were now no more than spectators, just like everybody else. No more needed to be said. It was down to Armstrong

For decades after the structure of DNA was identified, scientists focused purely on genes, the regions of the genome that contain codes for the production of proteins. Other regions - 98 percent of the human genome - were dismissed as ‘junk’. But in recent years researchers have discovered that variations in this ‘junk’ DNA underlie many previously intractable diseases, and they can now generate new approaches to tackling them.

Earth stands at a tipping point. As we fail to curtail emissions fast enough, our planet stares down a cascade of imminent, catastrophic, and irreversible disaster triggered by climate change. Yet a potent technology already exists to buy us more time: solar geoengineering. Through methods such as atmospheric aerosols, human-generated cirrus clouds, and solar sails, we humans can—at least in the short term—slow the Earth's warming. Should we?

In the course of our enduring quest for knowledge about ourselves and our universe, we haven't found answers to one of our most fundamental questions: Does life exist anywhere else in the universe? Ten years and billions of dollars in the making, the Mars rover Curiosity is poised toanswer this all-important question.

How should a democracy choose its representatives? How does disease spread? How do computers teach themselves chess and why is chess easier for them than analysing a sentence? All of these are questions about geometry. Jordan Ellenberg reveals the mathematics behind some of the most important scientific, political and philosophical conundrums we face. The word 'geometry', from the Greek, means 'measuring the world'. If anything, geometry doesn't just measure the world - it explains it. Shape shows us how.

In this Very Short Introduction, William Lowrie describes the internal and external processes that affect the planet, as well as the principles and methods of geophysics used to investigate them. From analyses of Earth's deepest interior to measurements made from Earth-orbiting satellites, Lowrie shows how geophysical exploration is vitally important in the search for mineral resources and emphasizes our need to understand the history of our planet and the processes that govern its continuing evolution.

Icy, rocky, sometimes dusty, always mysterious – comets and asteroids are among the Solar System's very oldest inhabitants, formed within a swirling cloud of gas and dust in the area of space that eventually hosted the Sun and its planets. Locked within each of these extra-terrestrial objects is the 4.6-billion-year wisdom of Solar System events, and by studying them at close quarters using spacecraft we can coerce them into revealing their closely-guarded secrets. This offers us the chance to answer some fundamental questions about our planet and its inhabitants.

It was a time of bold new technology, historic moments, and international jousting on the final frontier. But it was also a time of human drama, of moments less public but no less dramatic in the lives of those who made the golden age of space flight happen. These are the moments and the lives that Into That Silent Sea captures, a book that tells the intimate stories of the men and women, American and Russian, who made the space race their own and gave the era its compelling character.

The volumes of data we now access can give unparalleled abilities to make predictions, respond to customer demand and solve problems. But Big Brother’s shadow hovers over it. Though big data can set us free and enhance our lives, it has the potential to create an underclass and a totalitarian state. With big data ever-present, you can’t afford to ignore it. Acclaimed science writer Brian Clegg - a habitual early adopter of new technology (and the owner of the second-ever copy of Windows in the UK) - brings big data to life.

In this groundbreaking audiobook, author and narrator Eric Leo takes you on an electrifying journey from atheism to a revolutionary scientific spirituality. 108: The Story of Discovering Earth's Consciousness reveals how planets and stars are sentient beings communicating through electromagnetic fields — with Earth (Gaia) as our living, conscious home. Leo's raw, first-person narration brings visceral intensity to his decade-long transformation — from paranoid delusions of celebrity stalkers to the stunning realization he was actually perceiving Gaia's attempts to communicate.

You've got questions: about space, time, gravity and the odds of meeting your older self inside a wormhole. All the answers you need are right here. An eminent physicist at CERN and the cartoonist behind the hugely successful PhD Comics answer the most important, most outrageous and funniest questions about everything.

Why do some ideas take off - and others fail to spread? Why are some diseases predictable and others swamped in uncertainty? And what about the outbreaks that never happen at all? We live in a world that's more connected than ever before. But even as we see our lives being shaped by the spread of ideas, trends - and even diseases - we sometimes struggle to grasp how it actually works. Outbreaks seem to be driven by randomness and hidden laws, and in order to understand them, we need to start thinking like mathematicians.

The Martians explores the CIA's top-secret search for the Martians, multiple photos of strange anomalies, and the latest revelations about the environment and water on Mars. And most tantalizing of all: Did an ailing Martian race come to Earth in past eons and were they confused with gods? The questions concerning life on Mars - then and now - are many. The answers are astounding.